Please see the READ BEFORE POSTING topic on how attach longer output segments as .txt files.

The scripts used by CHARMM-GUI for model building are somewhat complex and not good examples for a beginner just learning to use CHARMM.

Another issue is the unfortunate choice of words used in some CHARMM features; here a "parameter" is better described as a user script variable. This particular forum is for discussions of the molecular parameters used in the force field, which are quite different from the variables being assigned in the posted script.